Find vertex of y = x² - 4x + 3
Step-by-step solution with detailed explanations
Final Answer
(2, -1)
Step-by-Step Solution
1
Find x
x = -b/(2a) = 4/2 = 2
2
Find y
y = (2)² - 4(2) + 3 = -1
3
Vertex
(2, -1)
Expert Insights
Formula: x-coordinate: x = -b/(2a)
Why?: Vertex is at axis of symmetry
Pro Tip: Vertex formula: x = -b/(2a), then plug in for y